How can you tell if a sinus infection is viral or bacterial?

Differences between allergies, colds and sinus infections

Is It A Sinus Infection, Cold Or Allergies?

Difference Between Viral and Bacterial Infections

Ask Dr. Mike: What is a sinus infection and how do I treat it?

How to Know if You Have a Sinus Infection?

Dr. Qasim Husain: Signs That a Sinus Infection May Be Dangerous

Study: Sinus infection? Skip antibiotics

Chronic Tonsillitis and It's Relationship to Hidden Stomach and Colon Infections

How do I know if my sinus infection is viral or bacterial?

Sinus infection: is it from virus or bacteria?

Sinus Infection Home Remedy (Doctor Secrets)

How do you tell if a sinus infection is viral or bacterial?

Diagnosing Sinus Infections

Can a doctor tell if a sinus infection is bacterial or viral?

How Can I Tell The Difference Between A Cold And A Sinus Infection?

How do I know if my sinus infection is bacterial or viral?

Sinus Infection vs. Allergies: How to Tell the Difference

Symptoms of a Sinus Infection

Sinusitis (Unusual Symptoms of Sinus Infection)